CSI: VEGAS, the sequel to the global hit CSI: Crime Scene Investigation, opens a brand-new chapter in Las Vegas the city where it all began. Facing an existential threat that could bring down the entire Crime Lab and release thousands of convicted killers back onto the neon-lit streets of Vegas, a brilliant new team of investigators led by Maxine Roby (Paula Newsome) must enlist the help of old friends Gil Grissom (William Petersen), Sara Sidle (Jorja Fox), David Hodges (Wallace Langham) and Catherine Willows (Marg Helgenberger). This combined force will deploy the latest forensic techniques to do what they do best follow the evidence in order to preserve and serve justice in Sin City.